Introduction
The common computer camera interface is USB, while the common camera on smartphones is MIPI,
MIPI stands for Mobile Industry Processor Interface, DVP stands for digital video port, and CSI stands for CMOS Sensor Interface.
1.DVP interface
DVP is a parallel port and requires PCLK, VSYNC, HSYNC, D[0:11] – can be 8/10/12bit data, depending on ISP or baseband support
DVP output part: Vsync (frame sync signal), Hsync (line sync signal), PCLK (pixel clock), data data line (8-bit or 10-bit) – the original RGB data transmitted
2.MIPI interface
MIPI is a differential serial port transmission, fast speed, anti-interference. Mainstream cell phone modules are now using MIPI transmission.
MIPI camera has three power supplies: VDDIO (IO power), AVDD (analog power), DVDD (kernel digital power), different sensor module camera power supply is different, AVDD has 2.8V or 3.3V; DVDD generally use 1.5V or higher, different manufacturers’ design is different.
Additional note: MIPI camera interface is called CSI, and MIPI display interface is called DSI.
MIPI is an open standard for mobile application processors initiated by the MIPI Alliance, and the MIPI-CSI-2 protocol is a sub-protocol of the MIPI Alliance protocol, which is specially designed for the interface of the camera chip
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Post time: Oct-17-2022
